One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,7)(9,10)(11,12)(13,14)(15,16)(17,18)(19,23)(20,21)(22,24)(25,26,29,30)(27,31,32,28)(1,2,5,6)(3,4,7,8)(9,10,13,14)(11,16,15,12)(18,20)(19,24)(27,32)(28,31)(2,6)(3,7)(10,14)(11,15)(17,18,21,20)(19,23,24,22)(25,27)(26,28)(29,32)(30,31)(1,3)(2,4)(5,7)(6,8)(9,11,13,15)(10,12,14,16)(17,19,21,24)(18,22,20,23)(25,28)(26,27)(29,31)(30,32)(1,4)(2,3)(5,8)(6,7)(9,12)(10,15)(11,14)(13,16)(17,20,21,18)(19,23,24,22)(25,26)(27,28)(29,30)(31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.